Circulator.



E. T. KLIPPERT.

CIRCULATOR.

APPLICAHON FILEDMAR. 18, 1915.

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CIRCULATOR.

APPLICATION FILED MAR. 18. 1915.

8 1,183,988. Patented May 23,1916.

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' CIRCULATOR.

APPLICATION FILED MAR- 18, 1915. 1,183,988. Patented Ma 23,1916.

7 I 3 SHEETS-SHEET 3. 6 55 3 e D STATES PATENT OFFICE.

EDWARD T. KLIPIPERT, OF DETROIT, MICHIGAN.

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To all whom it may concern:

Be it known that I, EDWARD T. KLIPPERT, citizen of the UnitedStates, residing at Detroit, county of lVayne, State of Michigan, have invented a certain new and useful Improvementin Circulators, and declare the following to be a full, clear, and exact description of the same, such as will'enable others skilled in the art to which it pertains to make and use the same,.reference bein had to the accom Jan in drawin s which form a part of this specification.

' This invention relates to circulators for inducing circulation of water in steam generating boilers.

It comprises one or more pairs of flexible curtains by which the hottest zone in the boiler can be partitioned off from the rest of the boiler space so as to require the drawing of water from the bottom of the boiler to take the place of the water that rises when heated. The flexibility of the curtain allows its installation in old boilers as well as new, and its easy removal for cleaning and inspecting the various heating surfaces of the boiler. i

The several advantages and the details of construction will appear more fully in the description hereinafter following.

Figure 1 is a vertical cross section of a Scotch boiler showing my flexible curtains in place. Fig. 2 is a vertical longitudinal section of the boiler showing the curtain in elevation, and a portion of the curtain and a portion of the furnace broken away. Fig.

' 3 is a top view of one of the flexible curtains and its guides. Fig. 4 is an elevation of a portion of the upper end of the flexible curtain. Fig. 5 is an enlarged and detailed viewof a portion of the furnace, the 'spac ing ring, the guide and the flexible curtain. Fig. 6 is a detail of one of the angle iron spaces.

Three spacing rings, 0;, made up each: of

such a manner asnot to have much surface resting upon the furnace shell.

The guides are made up of two outer thin strips separated by a narrower but thicker strip riveted thereto. The guides in their upper portion are straight and are held Specification of Letters Patent.

Patented Ma 23, 1916.

Application filed March 18, 1915. Serial No. 15,169.

vertically by opposite guides being bolted together by cross stay-rods, d, which also draw the guides directly against the sides of. the boiler flues. Howeverand this is importantthe upper portion of the guide is additionally provided with a spacing strip, 6, in the form of a channel bar. These spacing strips, 6, hold both the guides and the flexible curtains away from the flues, so circulation can be had between the flues and the curtains and guides and nothing can collect therebetween. The spacing strip ends when it reaches the spacing ring, for the latter member performs this function about the furnace crown.

The guide at the forward end of the boiler abuts against the inside of the front head and is provided with only one guiding groove; the guide at the rear of the boiler abuts against the forward wall of the combustion chamber andis provided with only one guiding groove; the intermediate guide is provided with two grooves, one on each side. In these guiding grooves slide the flexible curtains f, two on each side in the arrangements of guides shown in the drawber of guides and the number of curtains may be varied without departing fro'm the spirit-of'my invention. Each of the curtains is made up of a plurality of sheet metal slats, hinged together. Preferably I take two continuous strips of hinges, g, and rivet the one strip of hinges to the metal strips near one end and the other strip of hinges to the metal slats near the opposite end. The curtains form a complete chamber about the furnace shell and all or a majority of the flues. region'of the looiler and-the water is quickly heated and rises flowing out of the top of the chamber. New water must take its place and the only place any great amount of it can get in is at the bottom. This arrangement, therefore, draws the cold water from the bottom region of the boiler and starts circulation as soon as heat is liberated from the furnace, combustion chamber and flues.

The circulation is very strong on account of the-large volume of waterstarted in mo tion. Effective circulation can also be had with my circulator when the fire in the fur- This is the hottest lation is bound to take place if any considerable amount of heat is liberated or given out from the fire in the furnace, the flues or rear flue sheet. Another advantage that is to be considered is the fact that a heavy 1 jacent to the curtain, the angle iron spaces are bifurcated as shown in Fig. 6, to permit accumulation of scale. v r

The flexibility of the curtain allows the raising of the curtain by a rope and tackle block or other means (not shown) operated through the top manhole of the boiler and secured to the curtain through perforations h. The furnace crownsand tubes are then free for inspection and any repair or cleaning that they may require. Still a further feature of the flexible curtain partition 1s that it may be doubled or rolled up into a package of small compass so that. it may be readily taken through the manhole. The guides and spacing rings arealso so constructed that they may be taken through the, manholes. My circulator, therefore, may be applied to old boilers as well as new. Installation of circulator can be made-in a few hours without anycutting or mutilat- :ing the boiler in any. way.

WVhat I claim is '1. The combination with a boiler prolarge number of narrow slats hinged together, andforming an opening at the top through which the heated water is discharged and an opening at the bottom through which. the colder water is drawn.

2. Thecombination with a boiler provided with a furnace and fines located thereabove, of a1 horizontally flexible curtain located on each side and extending up over the side of the furnace and the side of the flues to near the top of the flues, the two curtains made up of a large number of narrow horizontally disposed slats which are hinged together, and forming. a chamber around the furnace andflues which is open at top and bottom. I

8 The combination witha boiler procurtains made up of a large number of nar- Copiee of thll patent may be obtained for row slats horizontally disposed, and located on each side of the furnace and flues and extending from the front end wall of the boiler to the combustion chamber, and forming a chamber which has no opening of substantial size except at the top and bottom.

4:. The combination with a boiler pro vided with a heating chamber, of a plurality of upright guides located in said boiler, and a curtain formed on each side of the heating chamber by a plurality of horizontally disposed slats removably held in said guides.

5. The combination with a boiler provided with a heating chamber, of a plurality of upright guides arranged on each side of the same, and a horizontally flexible curtain on each side of the heating chamber and slidable in said guides.

6. The combination with a boiler provided with a furnace and fines thereabout of a plurality of upright guides arranged on each side and spaced from the furnace and flues, and a horizontally flexible curtain supported on each side of said furnace and flues by said guides.

7. The combination with a boiler pro- I furnace and flues and provided with means for holding the main part of the guides away from the flues, spacing rings secured to the furnace and holding the lower portions of the guides away from the furnace, and a flexible curtain supported on each side of the furnace and flues by said guides.

8. The combination with a boiler with furnace, combustion chamber and flues, of a flexible curtain and a pair of guides for supporting said curtain in spaced relation with respect to the furnace and fiues, said guides comprising channel bars in which the said flexible curtain may be slid to remove the same.

9. The combination with a boiler having a furnace, combustion chamber and flues, of a flexible curtain made up of a plurality of narrow slats hinged together, and a pair of guides for supporting said curtain in spaced relation with respect to the internal parts of the boiler, the said guides comprising channel bars in which the said flexible curtain may be slid to remove the same.

In'testimony whereof, I sign this specification in the presence of two witnesses.

EDWVAR-D T. KLIPPERT.

Witnesses:

STUART C. BARNES, VIRGINIA C. SPRATT.

five cents each, by addressing the Commissioner 91 Plinth wllhington, D. 0. i 

